The Sample Size Needed to Estimate a Population Mean to Within

question 80

Multiple Choice

The sample size needed to estimate a population mean to within 50 units was found to be 97.If the population standard deviation was 250,then the confidence level used was

• A)90%
• B)95%
• C)99%
• D)None of these choices.

---

Definitions:

Esophageal Emptying

The process by which the esophagus clears food and liquids from the throat to the stomach, essential for normal digestion.

Liver Size

Refers to the physical dimensions of the liver, an important measure in assessing liver health and detecting abnormalities.

Auscultation

The practice of using a stethoscope to hear the noises produced by the body's internal organs as part of diagnosing health issues.

Bowel Sounds

Noises made by the movement of the intestines, which can be heard during a physical examination and indicate the functioning of the gastrointestinal system.